CVE-2021-47707 COMMAX CVD-Axx DVR Weak Default Credentials Stream Disclosure
Attackers can access the web control panel and RTSP streams using weak default administrative credentials, compromising video surveillance data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-47707?
CVE-2021-47707 is a critical vulnerability in COMMAX CVD-Axx DVR, published on 9 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
COMMAX CVD-Axx DVR 5.1.4 contains weak default administrative credentials that allow remote password attacks and disclose RTSP stream. Attackers can exploit this by sending a POST request with the 'passkey' parameter set to '1234', allowing them to access the web control panel.
Weakness: CWE-1392
Which versions are affected by CVE-2021-47707?
How do I fix CVE-2021-47707?
No fix has been published for CVE-2021-47707 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-47707 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47707 exists.
Sources
Also known as GHSA-q6gq-vxg6-9m9p.